JPH03201906A - Control of run-off agricultural chemical and fertilizer in gold course - Google Patents

Abstract

PURPOSE:To control the run-off agricultural chemicals and fertilizers in a golf course and prevent the environmental disruption by placing a tank for receiving drainage of golf course in or near a golf link, recovering the drainage in the tank and reutilizing the recovered drainage. CONSTITUTION:A tank T for receiving drainage of golf course is placed in or near a golf link and the drainage of the golf course is recovered in the tank and reutilized with a sprinkler to perform the control of run-off agricultural chemicals and fertilizers in a golf course. Preferably, a sideditch 6 for drainage is placed at the boundary of the fairway-side 2 and the rough-side, the sideditch is divided into a drainage channel 11 for fairway and a drainage channel 12 for rough by protruding a partition wall 10 in the sideditch and only the fairway-side drainage is introduced into the tank T.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for managing washed-up agricultural chemicals and fertilizers at a golf course.

[Conventional technology]

At a golf course, the most time-consuming aspect of maintenance is lawn management, which involves watering and mowing the lawn in the morning and evening, and spraying herbicides to prevent weeds and insects in the early morning and evening when golfers are not present. In addition to spraying pesticides to destroy grass, chemical fertilizers to help the grass grow and fungicides to prevent lawn diseases cannot be missed even for a single day.

In the UK, where golf is originally played, it was played on grass that grew naturally, so it is said that the grass can be maintained without overprotecting it, but in Japan, it is only played in mountainous areas that have been forced open. In order to maintain the condition of the greens under harsh conditions such as snow in the winter, scorching heat in the summer, and severe temperature differences between morning and evening, over-protective management is required.

Currently, pesticides and chemical fertilizers sprayed in large quantities on golf courses are washed away by rainwater and flowed into nearby rivers and ponds, but no countermeasures have been taken in the past. Ta.

[Problem that the invention seeks to solve]

Currently, there are no legal regulations regarding the use of pesticides on golf courses, so large amounts of pesticides that are no longer used due to their toxicity are used on actual farmland. Use takes priority.

As a result, the deterioration of water quality in rivers and ponds that have their sources near golf courses has come under close scrutiny. For field drainage, Sumithion, MEP,
It has been reported that it contains highly toxic pesticides such as IBP, Daconil, and Lonestar.

Fungicides such as Daconil, which prevent lawn diseases, are also harmful to fish, and it is said that after spraying these chemicals, the number of young fish in rivers whose water sources are golf courses will drastically decrease. Additionally, fungicides such as MEP are carcinogenic, and it is clear that if they are used in the drinking water of downstream residents, they will have an invisible impact on their lives.

In a recent actual incident, approximately 90,000 Yamame trout and Donaldson trout (a type of trout) that had been stocked into an aquaculture pond in Hiroshima Town, Sapporo City, Hokkaido were found dead, but this was caused by snow on the grass. The cause is said to be pesticides sprayed to prevent rot.

On the other hand, even if chemical fertilizers are not toxic, they cause eutrophication of water quality and cause rivers to become cloudy. Especially,
In the case of reservoirs, the concentration of pesticides not only makes it uninhabitable for fish, but also disrupts the environment for the birds that prey on them, and in severe cases, the water becomes unusable for agricultural purposes. Another problem is that currently granular fertilizers are mainly used, and in the case of powdered fertilizers,
Where daily application is required, granular fertilizers have the advantage of being able to be applied once a week, but if there is a large amount of rainfall, the granular fertilizers will be washed away all at once, leaving rivers and lI. This not only deteriorates the water quality of the water pond, but also results in significant losses due to decreased fertilizer efficiency.

Regarding residents' reactions to pollution, the Kanazawa City Yu F1
The construction of a golf course in a temple area has sparked protests among local residents, citing concerns that it would lead to environmental destruction.

In view of the above-mentioned circumstances, this invention has been developed to reuse wastewater from golf courses, thereby preventing environmental damage caused by spraying pesticides and fertilizers, and creating an economical golf course that saves on pesticides and fertilizers. The purpose of this study was to provide a method for managing washed-off pesticides and fertilizers.

[Means to solve the problem]

In order to achieve the objective 1 of L-, the inventors conducted various experiments and research, and found that among washed-up pesticides and fertilizers, the effectiveness of fertilizers in particular is due to +i chemical alteration after washing up. As a result, this invention was completed.

That is, the present invention installs a tank into which the golf course wastewater flows at or near the golf course, collects the golf course wastewater into the tank, and reuses the recovered water using sprinkler equipment.

In addition, a drainage ditch is installed at the boundary between the fairway side and the rough side of the golf course, and a protruding partition wall divides the inside of the ditch into a fairway side drainage channel and a rough side drainage channel, allowing drainage only from the fairway side. It can also be introduced into tanks.

[For production]

Since the management method for pesticides and fertilizers washed away at golf courses is configured as described above, even if pesticides and fertilizers sprayed on golf courses are washed away by rainwater, they are collected in tanks, so they do not flow into rivers, reservoirs, etc. This will ensure that even if there is a spill, it will not cause environmental damage.

Furthermore, since the wastewater collected in the tank is reused using the golf course's watering equipment, it saves on pesticides and fertilizers, which has an extremely large economic effect.

It also saves water. Furthermore, it can be used for other purposes, such as water for hydroponic cultivation.

The concentration of fertilizer in the wastewater collected in the tank is low, so it is desirable to adjust the concentration by replenishing the fertilizer when reusing it.

At golf courses, it is especially important to maintain the grass on the fairways of the main courses, so large amounts of pesticides and fertilizers are sprayed on the fairways. Therefore, if only the waste water from the fairway side is collected in a tank, it is possible to spray water with an unbalanced concentration of fertilizer, and when adjusting the concentration, only a small amount of fertilizer needs to be replenished.

In addition, since few players enter the rough side, the amount of pesticides and fertilizers sprayed is small, so even if drainage from the rough side is not collected and flows into rivers or reservoirs, there is no problem of pollution caused by pesticides and fertilizers. There is no risk of it occurring.

〔Example〕

Next, embodiments of the present invention will be described based on the drawings.

The drawing is an explanatory view of one embodiment, in which a tank T is buried near one hole H of a golf course.

Hole H, like at a regular golf course, has a teeing ground l where you hit the golf ball, followed by fairway 2 of the main course with a long, closely mown grass, and beyond that is green 3. There is a rough 4.4 with long grass around fairway 2.

Fairway 2 is sloped slightly S due to halo etc.
A side gutter 6 for drainage is provided along the boundary between the fairway 2 and the rough 4 on the slope side, and a large number of drainage pipes 7 for underground drainage are buried in the fairway 2 toward the side gutter 6.

Further, since the fairway 2 becomes lower toward the middle part in the longitudinal direction, a collecting cell 8 is provided in the middle part of the side gutter 6, and a pipe 9 is provided from the collecting cell 8 to the tank T.

The concrete block 6a of the side gutter 6 is formed into a 3-shaped cross section, and has a protruding partition wall lO protruding from the center of the width of the bottom, and the inside is for drainage on the fairway 2 side!Nll and rough 4.
It is divided into a drainage ditch 12 on the side.

The collecting cell 8 is also divided into two sections, with a fairway side drainage ditch 11 passing through a pipe 9 to the tank T, and a rough side drainage ditch 12 leading to a drainage channel 13 to the reservoir P.

The tank T is formed of FRP or the like, and has an inlet 15 for drainage and an overflow port 16 at the upper end of one end, and a replenishment port 17 for agricultural chemicals at the upper end of the other end. In addition, there is a water level gauge 18 in the middle part.
is installed upright, and a water pump 19 is installed at the bottom.

The drainage inlet 15 has two levels, upper and lower, and a protrusion 20.2 is provided at the edge of the outlet of each level to prevent solid matter such as earth and sand from entering.
In order to ensure prevention of intrusion, mesh filters 21 and 21 are installed at each stage.

The overflow port 16 is opened between the upper and lower stages of the inflow port 15 and communicates with the drainage channel 13 to the reservoir P. Water pump 1
A water pumping pipe 25 connected to the hole 9 communicates with a water supply pipe 26 to the hole 1■ and a water supply pipe 28 to the field 27. For any water supply, when the switch on the water sprinkler is pressed, the solenoid valve opens and the pump 19 is operated, and water is supplied in either direction by remote control.

The water supply pipe 26 to hole H is buried along a high position on the opposite side of the slope of the fairway 2, and sprinklers 30, 30, etc. connected to the water supply pipe 26 are erected at equal intervals on the ground surface. , are arranged so that water can be evenly sprinkled on fairway 2.

In addition, as shown by the dashed line in FIG. 2, it is desirable to provide the sprinklers 3, 0a also in high positions.

When it rains on a golf course, pesticides and fertilizers that have already been sprayed on the grass wash away with the rainwater, causing drainage pipes 7.7.
...and along the gutter 6, they gather at the gathering square 8.

At gathering square 8, rainwater from the fairway 2 side is collected in tank T.
Rainwater from Rough 4 is drained separately to Reservoir P, but since the rainwater from Rough 4 has a low concentration of pesticides and fertilizers, the impact on Reservoir P is small.

Since the rainwater led to the tank T has a relatively high concentration, it is stored and later used for watering for lawn growth management on a golf course, or by supplying water to a field 27 for hydroponic cultivation. Since it contains pesticides, ornamental crops other than food are suitable.

When there is a large amount of rainfall, rainwater may overflow from tank T and flow into reservoir P;
Because of the dam effect, the inflow is limited to a small amount, so there is no negative impact on the reservoir P that would cause the death of fish.

Furthermore, since the pesticide concentration in the tank T is diluted by rainwater, the fertilizer effect is low as it is, so water-soluble fertilizer is replenished using a tank truck R or the like.

In this case, additional fertilizer should not flow into the reservoir P due to heavy rainfall, so watering the golf course and fields 2.
It is desirable to replenish water-soluble fertilizer immediately before supplying water to 7.

Furthermore, when replenishing the water-soluble fertilizer, the pesticide concentration in the water stored in the tank T is measured, and the amount of replenishment is calculated based on the measured value and the amount of water in the tank T. The amount of water in the tank F is displayed by a water level gauge 18.

〔Effect of the invention〕

As explained above, according to the present invention, wastewater from the golf course is collected in a tank, so the outflow of pesticides and fertilizers into rivers, reservoirs, etc. is suppressed as much as possible. In addition, since the collected wastewater is reused for turf cultivation management using the golf course's watering equipment, a portion of the costly spraying costs of pesticides and fertilizers can be saved. Therefore, it has excellent effects such as reducing maintenance and management costs.

In addition, by installing a partition wall in the side gutter, if only the wastewater from the fairway side, which has a high concentration of pesticides and fertilizers, is introduced into the tank, the wastewater with high fertilizer effect can be collected, and even in the case of heavy rain, it can be removed from the tank. It is rational, such as being able to prevent flooding, and the above-mentioned effects can be significantly exhibited.

[Brief explanation of drawings]

The drawings show one embodiment, and FIG. 1 is an overall explanatory diagram, and FIG.
3 is an enlarged sectional view of section A in FIG. 1, and FIG. 4 is a sectional perspective view of the side ditch of the golf course. H...One hole on the golf course T...Tank 2...
Fairway 4...Rough 6...Gutter 10...
Partition wall 11... Fairway side drainage channel 12 - Rough side drainage channel

Claims (1)

[Claims] 1) A tank is installed at or near the golf course into which wastewater from the golf course flows, the wastewater from the golf course is collected in the tank, and the recovered water is reused using sprinkler equipment. Features: How to manage runoff pesticides and fertilizers at golf courses. 2) A drainage ditch is installed at the boundary between the fairway side and the rough side of the golf course, and a partition wall is installed to divide the inside of the ditch into a fairway drainage ditch and a rough drainage ditch, so that only the fairway drainage can be drained. A method for managing washed-up pesticides and fertilizers at a golf course according to claim 1, which comprises introducing the pesticides and fertilizers into a tank.